Elawa S, Mirdell R, Farnebo S, Tesselaar E. Skin blood flow response to topically applied
methyl nicotinate: Possible mechanisms.
Skin Res Technol 2019;
26:343-348. [PMID:
31777124 DOI:
10.1111/srt.12807]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/09/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND
Methyl nicotinate (MN) induces a local cutaneous erythema in the skin and may be valuable as a local provocation in the assessment of microcirculation and skin viability. The mechanisms through which MN mediates its vascular effect are not fully known. The aim of this study was to characterize the vasodilatory effects of topically applied MN and to study the involvement of nitric oxide (NO), local sensory nerves, and prostaglandin-mediated pathways.
METHODS
MN was applied on the skin of healthy subjects in which NO-mediated (L-NMMA), nerve-mediated (lidocaine/prilocaine), and cyclooxygenase-mediated (NSAID) pathways were selectively inhibited. Microvascular responses in the skin were measured using laser speckle contrast imaging (LSCI).
RESULTS
NSAID reduced the MN-induced perfusion increase with 82% (P < .01), whereas lidocaine/prilocaine reduced it with 32% (P < .01). L-NMMA did not affect the microvascular response to MN.
CONCLUSION
The prostaglandin pathway and local sensory nerves are involved in the vasodilatory actions of MN in the skin.
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